NonStop System Glossary

frame
1. An assembly of sheet-metal parts that is an integral part of a NonStop S--series system enclosure
and might contain peripherals or a chassis, depending on the type of enclosure. The frame enables
the enclosures to be stacked and has provisions for routing and securing cables. The frame of an
enclosure has dimensions that conform to an industry-standard 19-inch rack.
2. A unit of transmission in some data communications protocols, usually containing header, data,
and checksum fields.
3. In NonStop S-series processors, a 4096-byte unit of physical memory; also called a physical
page.
4. On TNS/E systems, a 16 KB unit of physical memory; also called a physical page.
frame base
An assembly consisting of casters, leveling pads, and frame sheet metal that is an integral part of
a NonStop S-series base enclosure.
free list
In the Open System Services (OSS) file system, the list of available inodes that can be allocated
to files.
frequency
The number of complete cycles/second of sinusoidal variation. For alternating-current (AC) power
lines, the most common frequencies are 60 hertz and 50 hertz.
FRU
See field-replaceable unit (FRU).
FRU information record (FIR)
A collection of information that every field-replaceable unit (FRU) carries with it, such as part
number, revision, track ID, and media access control (MAC) address.
F-SAC
See fiber-optic ServerNet addressable controller (F-SAC).
FTAM
See File Transfer, Access, and Management (FTAM).
FTP
See file transfer protocol (FTP).
full-height blade
Form factor description for the HP Integrity NonStop Server blades.
fully qualified domain name
An unambiguous domain name that specifies the exact location in the domain name system's tree
hierarchy through to a top-level domain and finally to the root nameserver.
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